Essential oil diffuser



FIG. 1 is a front elevational view of an essential oil diffuser showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a right elevational view thereof;

FIG. 4 is a left elevational view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a top perspective view thereof; and,

FIG. 7 is a top plan view thereof.

In the drawings, the broken lines depict portions of the essential oil diffuser that form no part of the claimed design. 

CLAIM The ornamental design for an essential oil diffuser, as shown and described. 